Another additional question: does Roma need the Europa League? Why do they need 2-4 extra matches there if they have no chance of winning the title? They have more important tasks in Serie A - they are currently just two points from the relegation zone. There is a potentially easy game against Parma, but then Milan, Lazio, Bologna. If I were them, I would be more worried about that.
Roma's hopes in Serie A are just trying not to be relegated, they are certainly capable of that. because chasing the top 5 positions in the standings will also be difficult for Roma, Roma's performance this season cannot be favored in Serie A. Still, maybe they will definitely try not to be eliminated in this qualifying phase. even through the playoffs, there is a possibility that Roma will also meet a strong team and will have difficulty qualifying.
Here's how Roma's chances look compared to other teams:
Tottenham Hotspur - 5.50
Manchester United - 6.00
Athletic Bilbao - 6.50
Lazio - 9.00
Real Sociedad - 9.00
As Roma - 13.00
Literally 7.5% to win the Europa League. If Roma don't win their next match with Parma, their chances of being relegated from Serie A will be comparable. I would prioritize Serie A.
But maybe Roma think that they have a place in Serie A in their pocket and can earn money in the Europa League.